If there's still space in this I was thinking of making a goblin, kobold, ratmen etc. faction of Justinians somewhere close to the border between the Yuwan and Justinian border. Possibly that little teal nation. They would be pretty new, a result of a Justinian supplied insurgency of "lesser" races against the countries ruler that went way further than expected, drawing hordes of what is normally fodder in fantasy settings into one massive Union that is fully on board with replacing their current state of having short and brutal lives with the Justinian's promised paradise.